Originally it was an Irish Family History Foundation / Rootsireland project, which I was given while editing online material for them. It was first published as a special issue of Clann, the online Rootsireland magazine, at Easter 2016. In more recent months Kildare County Council and Merrion Press / Irish Academic Press took the project further to publish it in book form.
I’ve yet to see a copy but I’m reliably informed that it is now in print and ready for the Christmas market. It’s on the Merrion Press / Irish Academic Press website.